<template>
  <div>
    <!-- 头部面包屑部分 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 用户列表区域 -->
    <el-card>
        <!-- 搜索区域和添加用户区域 -->
      <el-row :gutter="20">
        <el-col :span="10">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" stripe border>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态">
              <template slot-scope="scope">
                  <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
                  </el-switch>
              </template>
          </el-table-column>
          <el-table-column label="操作" width="180">
              <template slot-scope="scope">
                  <el-button type="primary" icon="el-icon-edit" size="mini" @click="editUserBtn(scope.row.id)"></el-button>
                  <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUserBtn(scope.row.id)"></el-button>
                  <el-tooltip effect="dark" content="角色分配" placement="top" :enterable="false">
                      <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
                  </el-tooltip>
              </template>
          </el-table-column>
      </el-table>
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
    </el-card>
    <!-- 添加用户区域 -->
    <el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%" @close="resetAddForm">
  <el-form :model="addUserForm" :rules="addUserRules" ref="addUserFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addUserForm.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="addUserForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addUserForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="addUserForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser()">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户区域 -->
    <el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="50%" @close="resetEditForm">
  <el-form :model="editUserForm" :rules="editUserRules" ref="editUserFormRef" label-width="70px">
  <el-form-item label="用户名">
    <el-input v-model="editUserForm.username" disabled></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="editUserForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="editUserForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUser()">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  name: 'Users',
  data () {
    // 自定义规则校验邮箱，手机号
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法邮箱'))
    }
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法手机'))
    }
    return {
    // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前一页展示多少条数据
        pagesize: 2
      },
      userList: [],
      total: 0,
      // 就是为了控制dialog的显示与隐藏
      addDialogVisible: false,
      // 添加用户表单数据
      addUserForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户的表单校验规则
      addUserRules: {
        // 用户名校验
        username: [{ required: true, message: '请输入用户名', triggle: 'blur' },
          { min: 3, max: 10, message: '用户名长度在3~10个字符之间', triggle: 'blur' }],
        // 密码校验
        password: [{ required: true, message: '请输入密码', triggle: 'blur' },
          { min: 6, max: 15, message: '用户名长度在6~15个字符之间', triggle: 'blur' }],
        // 邮箱校验
        email: [{ required: true, message: '请输入邮箱', triggle: 'blur' }, { validator: checkEmail, triggle: 'blur' }],
        // 手机校验
        mobile: [{ required: true, message: '请输入手机号', triggle: 'blur' }, { validator: checkMobile, triggle: 'blur' }]
      },
      // 点击修改按钮的用户回显数据
      editUserForm: {},
      // 控制修改的弹框的显示与隐藏
      editDialogVisible: false,
      // 修改用户的表单校验规则
      editUserRules: {
        // 邮箱校验
        email: [{ required: true, message: '请输入邮箱', triggle: 'blur' }, { validator: checkEmail, triggle: 'blur' }],
        // 手机校验
        mobile: [{ required: true, message: '请输入手机号', triggle: 'blur' }, { validator: checkMobile, triggle: 'blur' }]
      }
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
      this.userList = res.data.users
      this.total = res.data.total
      this.$message.success('获取用户列表成功！')
    },
    // 监听 pagesize 改变的事件
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听当前页码的事件
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 但用户点击开关按钮时，就将状态保存至数据库
    async userStateChange (userInfo) {
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) return this.$message.error('状态更新失败！')
      this.$message.success('更新状态成功！')
      this.getUserList()
    },
    // 关闭对话框，重置表单
    resetAddForm () {
      this.$refs.addUserFormRef.resetFields()
    },
    // 点击确定添加用户
    addUser () {
      // 先校验用户输入数据是否合法
      this.$refs.addUserFormRef.validate(async valid => {
        if (!valid) return false
        const { data: res } = await this.$http.post('users', this.addUserForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 修改按钮点击事件
    async editUserBtn (userId) {
      const { data: res } = await this.$http.get('users/' + userId)
      if (res.meta.status !== 200) return false
      this.editUserForm = res.data
      this.editDialogVisible = true
    },
    // 关闭修改弹框，让数据清空
    resetEditForm () {
      this.$refs.editUserFormRef.resetFields()
    },
    // 点击确定按钮，修改用户数据，并关闭弹框，刷新列表，给用户提示
    editUser () {
      this.$refs.editUserFormRef.validate(async valid => {
        if (!valid) return false
        const { data: res } = await this.$http.put('users/' + this.editUserForm.id, { email: this.editUserForm.email, mobile: this.editUserForm.mobile })
        if (res.meta.status !== 200) return this.$message.error('更新数据失败！')
        this.getUserList()
        this.editDialogVisible = false
      })
    },
    // 删除用户按钮
    async deleteUserBtn (id) {
      const resuleConfirm = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(error => error)
      if (resuleConfirm !== 'confirm') return this.$message.info('已取消删除！')
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除数据失败！')
      this.$message.success('删除数据成功！')
      this.getUserList()
    }
  }
}
</script>

<style scoped>
</style>
